Machine for dressing,stretching, and otherwise treating skins, hides, leather, and the like.



4 A. M. MARX. MACHINE FOR DRESSING, STRETGHING, AND OTHIERWISE TREATINGSKINS, HIDES, LEATHER,

AND THE LIKE;

APPLIOATION FILED JULY 7, 1909.

Patented Dec. 13, 1910.

2 SHEETS-SHEET 1.

Fig.1

Lure 12E! l i-Mm:

. Attorneys I MEI/$55425 01 20M A. M. MARX. MACHINE FOR DRESSING,STRETGHING, AND OTHERWISE TREATING SKINS, HIDES, LEATHER,

AND THE LIKE. v ,AIPPIOATION FILED JULY 7, 1909.

978,318. Patented Dec.13,1910.

2 sums-sum 2.

I EM W ,raazzwhma may concemf:

UNITED STATESPATENT OFFICE.

ARTHUR MIRTIL 141 l; mannerisms-m m, enem mncnmn non nnnssme, macaw; Amirmme-smns, nmss,

Be a known that I, Ammin 1am Mm,

, citizenof Germany,sub'ject of the King of.

Prussia and Emperor' of Germany, residing at 70 -H6chsterstras'se,Frankfort-on-the- Main, in the Kingdom of'Prussia and Empire ofGen'nanyy have invented a new and useful Machine for Dressing,Stretching, and

Otherwise Treating- Skins, Hides, Leather, 14)

. specification.

and the'Like, ofr which the following is a The subject-matter of myinvention is an improved machine for dressing, finishing,-

stretching orrotherwise treating skins, hides, leather and the-like. p I

Oneobje'ct of the invention consists in fo fithetables' carrying theskins or hides and on theztwofjsifdes of the tables in symmet i-.

cally slantihg directions relatively-to the c i-' rection' of the 'tablemotion, saidslantingly jam-aged rollers lying in or approximately I d vin the lrections OfihQdiflgOIlfilSrbBtWGGIl the direc' oniof the motionof the tables andthe 1line, ;perpendicular to this direction, in such amanner that each pair of slantinglyan ranged rollers forms an angleopening-in the direction 'of the table motion.

A further object of my invention is that tli'e woi king ribs of each ofthe slanting roll ers run spirally in a manner known in itself toward.the ends of the roller from a plane at right angle tothe axle ofrotation of this roller, this plane being so located in each instancethat it'lies exactly or approximately I parallel to the central line ofthe apperta ing foot portion of the skin hungover t e moving table andcoincideswith this=perfectly or approximately when the skin passes. Bymeans of this arrangement it is possible Ito dress,;'stret ch" orotherwise treat the less united, loose or freely pendent parts'of theskin, namely the footand head'parts, intheir natural 'directions'ofgrowth, so that folding and wrinkling of these parts of tlie hide duringthe dressingor stretching operation is avoided. Evenwh'en rollersarranged slantmacaw or Letters latent. ss neation neafrul'y 7, 1909.Serial m. 506,391.

working rollers or cylinders being arranged in planes parallel to thedirection of motion LEA-Tr na; AND rm; I

'Paaaaa Dec. 13.1910.

responding'to the changing size and shape of the hides or skinswhiehnr'e to be treated it is important to arrange at least the one "ofeach pair of-slanting rollers displaceable inthe direction of its axisof rotation. 66

Otherobjects of my invention will be seen fromthe following descriptionand claims in connection with the annexed drawings.

One constructional form jOf the machine is represented by way of examplein the accom e5 panying drawings, Wherein Figure 1 is a front elevation,2 is a vertical transverse section in the plane XX in Fig. 1, whereasFig. 3 1s a crosssection through one of the rollers on a larger" 70scale.

Referring to the drawing, the conveying tables or plates 2,- over whichthe skins or hides 3 are hung, are suspended movably on endless chains4, in the. usual manner in the frame 1; the chains are placed around Iwheels 5 and are driven with the intermediary ofthe toothed gearing 7,8, 9 by the belt-pulley 6. In the illustrated form of the device threeconveying tables are arranged so driven bythe endless chains, but ofcourse four or five or another number of tables may be provided. Thedirection of motion of, the endless chains 4 and conveying tables) isindicated by arrows'in Fig. 2.

In the illustrated example, four obliquely disposedI'OllGIfSiLIfQ'PI'OVldGd which are arranged in pairs ,with the membersof veach pair'on opposite sides of the path, of the tables-2. The frontrollers fl'and of 1 each pair are seen in Fig.1,while in F1g. 2 thefront and rear members 11, 11 of one pair are indicated. Each-pairofsaidrollers (10 and .11) is arranged symmetrically slanting nearly -:in thedirection-ofthe ding -9 5 onals between the direction of-fthe motionofthe tables and the line perpendicularl-ito.

that direction, so that both rollers offea'ch' pair form an angleopening in -th'e direction of the motion of tables; Belowthe slantrollers 10 and 11, which are locatedat'an' angle one to the other, arearranged inadd1 tion on each side of-thefpath of the'plates or tableshorizontal rollers 12 and 125 The" rollers situated-at each 'side' ofthe path of the plates afe journaledina frame 13 and. 13, respectively,movable in the frame 1. The two, frames 13 and 13 are pressed toward oneanother 7}. e. toward thepat-h of the plates by'springs 15L and lit; -Inthe 11s 12 isrotsitedcorrespondihgly by thei wheel ,19, whic h mesheswith the t flied wheel 8, sprocket wheel 16, chain flF and the sprocketwheel 18, so that the rollers-'12, and 12 rotate in oppositedirectionsfa's "will'be' readily understood. The slant roll'ersfarranged on both sides of the of theplates 2 and ;at an oblique angleto; the direction of motion of said plates are driven in thisconstructional .form from the" horizontal rollers 12 and 12*, theslanting rollers located to the rear in the view shown of which only theone, 11, is ivisible in Fig. 2, being driven by means of the chain 20from the shaftof the front roller- 12 and the front slanting rollers 10and 11 being driven by means of the chain 20 from the'rear roller 12.The horizontal ,{:"the rollers ofthe other pair because onthat shafts 21and 21* are coupled with the chains 20 and 20 and, impart their motionby'means of bevel wheels 22, 23 respectively to the slantingrollerswhich consequently rotate ini the direction of the arrows shownon them As is clearly shown in Fig. 1, the rollers 11 and 11 of one pairare longer than side on which the rollers 11 are located, I

arrange the head of the hide and consef quently the hide'eXt-endsfarther toward that side of the machine than toward the opposite sidethereof. Further, as clearly shown in Fig. 1, the ribs on the slantrollers also run spirally from lines or points 2 1, situ- II atedbetween the ends of the rollers, toward the two ends, or in other wordsthe spirals ofthe slant rollers or cylinders are divided ,fon=a lineintermediate their ends, said dividgvg linenbeing arranged .in such amanner that it fwillbe as exactly as possible parallel 45.

to the:--.cen'tral line of the appertaining foot or claw portion of theskin hung over the table. The smaller rollers 10. are mounteddisplaceablyontheir axles 25. For raising.

by which rhomboidal figures are formed and lowering the rollers .10there is provided a chain 26 guided overa sprocket wheel provided with ahand-wheel or crank 27, whereas the other end of the chain loaded by acounter-weight 28 slides in a guide 29. The construction of the rollerswill be readily understood from the enlarged cross-sectional view inFig. 3. They comprise an ordinary iron pipe 30, on the periphery ofwhich spiral, angular, metallic strips 31 which may consist of iron,brassqor the like, are at- 'tached by rivets 32. It is preferable topro- 'vide near the central lines 24: between the -.spirally woundstrips'31 short cross-pieces in addition, as clearly shown in Fig. 1; 1Owing to the arrangement of such cross-pieces,

skins 3 are hung in such a tables 2 that the central l1nes ofthe clawrollers. is improved. By the rollers being made hollow they are ofcomparatively small weight, so that their displacement'on theiraxlesisfacilitated.

When my machine isused the hides or osition'over the parts register asexactly as possible with the. central lines of the rollerslO, 11 whenpassing the slanting rollers 10, 11. In order to.

near each central line 24 the action of the obtain this according to thediiferent size of the skins to be treated in each instance the rollersare adjusted correspondingly by means of'the hand-wheel or crank 27'.The

inachine'may also be arranged horizontally.

Some or all the slanting rollers may be 'made displaceable axially byoptional means i and I have shown them all so displaceable.

Having now particularly described: and ascertained the nature of mys'ald invention and. in what manner the same is to be performed, Ideclare that what I claim is 1.- In a machinefor dressing, stretchingand otherwise working skins, hides, leather and the like a frame, tablesfor the skins movably arranged in'said frame, rollers with working ribsrotatably arranged in said frame on both sides of the path of the tablesand parallel to them, said rollers on bothsides of said path beingarranged in pairs in symmetrically slanting directions relatively to thedirection of the motion of the tables, theslanting rollers of each pairforming an angle opening in the direction of said motion, and means fordisplacing one of each pair of rollers axially.

2. In a machine for dressing, stretching and otherwlse working sklns, hdes, leatherand the like a frame, tables for the skins movably arrangedon said frame, rollers with working ribs rotatably arranged in saidframe on both sides of the path of the ta- .bles and parallel to, them,said rollers on :both sides of said path being arranged inpairs insymmetrically slant ng directions relatively to the direction of themotion of the tables, the slanting rollers of each pair forming an angleopening in thedirection of said-motion, the working ribs ofeachslantingly arranged roller running spirally vfrom a dividing planeintermediate itsends to said ends, and means for axiallydisplacing saidslantingly arranged rollers.' l

3. In a machine for dressing, stretch ng and otherwise working skins,hides, leather and the like, a frame, tables for the skins movablyarranged on said frame, rollers with working ribs rotatably arranged inframe on both sides of the path of the tables and parallel to them,

said

one pair of said rollers being located on eachside of said table pathand arranged in symmetrically slantin dif rections with relation to thedirection 0 the v l motion of the tables, the slanting-rollers ch13!each pair forming an angle opening in the direction of said motion, ahorizontal roller on each side of said path below the adjacent pair ofslanting rollers, the three rollers of each side being rotatablyarranged in a common frame slidingly arranged within the against thepassing tables.

4. In a machlne for dressing, stretching and otherwise Working skins,hides, leather and the like, a frame, tables for the skins movablyarranged on said frame, rollers with working ribs rotatably arranged insaid frame on both sides of the path of the tables and parallel to them,said rollers on both sides of said path being arranged in pairs insymmetrically slanting directions relatively to-the direction of themotion of the tables,

' the slantingrollers of each pair forming an angle opening in thedirection of said motion, the,working ribs of each slantingly arrangedroller running spirally from a dividing plane intermediate its ends tosaid ends, one ofeach pair of said slanting rollers being shorter thanthe other, and means for axially displacing the shorter of each pair ofslantingly arranged rollers.

5. In a machine for dressing, stretching and otherwise Working skins,hides, leather ,and the like, a frame, tables for the skins movablyarranged in said frame, rollers with working ribs rotatably arranged insaid frame on both sides of the path of the tables and parallel to them,said rollers on both sides of said path being arranged in pairs insymmetrically slanting directions relatively 'to the direction of themotion of the tables, the slanting rollers of each pair forming an angleopening in the direction to said ends, and means for axially displac ingsaid slantingly arranged rollers, said movable rollers being madehollow. chief frame of the machme, and springs for 5 pressing sa droller frames with said rollers 6. Ina machine of the characterdescribed, means for moving the material to be treated, a plurality ofhorizontally-arranged and diagonally-arranged rollers rotatably mountedto contact with said material during its movement, and means foradjustin the position of the diagonallyarrangec l rollers longitudinallyof their axes.

7. In a machine of the character described, means for moving thematerial to be treated, a plurality of diagonally-arranged rollersdisposed in 'pairs and rotatably mounted to contact with said materialduring its movement, and means for adjusting the position of one of eachpair of rollers longitudinally of their axes.

8. In a machine of the character described, means for moving thematerial to be treated, a plurality of rollers rotatably mounted tocontact; with said material during its movement, and means for manuallyadjusting the position of some of said rollers longitudinally of theiraxes, said means including a sprocket wheel, a crank for turning saldWheel, and a chain passing over said wheel and secured to the roller adjacent one end.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ARTHUR MIRTIL MARX. \Vitnesses:

JEAN GRUND, CARL GRUND-

